Well, for one thing, it might well not have BEEN a yurt, depending on the stage of wealth and development we're talking about here! My expertise is a little later, so I can't speak to the Huns, but the Mongols and their close cultural kin were not exclusively living in round tents covered in animal hides, especially when they had money to spend. As steppe nomads get wealthier, their tents get bigger, and lose that characteristic round shape because it's simply not the most efficient way to cover a huge space. Unfortunately, the only examples of a royal tent to actually survive as far as I'm aware are extremely late and come from the Ottoman court, but they're incredibly lavish.

Regardless of shape and size and time period, the one thing you can bet on for sure that the interior of a wealthy person's tent would be covered in the most luxurious fabric that person could afford. Fabric is a great commodity to invest in when you're a nomad! Portable, hard to break, easy to display in your home. Again, it's difficult to find surviving material from early on, but this is what a tent panel looked like in India in the 17th century, and this is some surviving Mongol fabric. Thomas Allsen's Commodity and Exchange in the Mongol Empire: A Cultural History of Islamic Textiles is a good read to really explore the Mongol obsession with fine fabrics, especially gold silk brocade. They drove up the market across all of Eurasia.

Here is a description of the kind of thing you can achieve with tents, from a visitor to the court of Timur. This is quite late (1400ish) but it gives you a sense of what was possible.

Near these awnings, there was a great and lofty pavilion, which was like a tent, only square, and three lances high. It was a hundred paces broad, and had four corners, and the ceiling was round, like a vault. It was pitched against twelve poles, each as large round as a man, measured round the chest. They were painted gold and blue, and other colours, and from corner to corner there were poles, three fastened together, and making one. When they pitched the tents, they used wheels, like those of a cart, which were turned by men, and they have ropes fixed in various directions, to assist them. From the vault of the ceiling of the pavilion silken cloths descended, between each of the poles, which were fastened to them, and when they were fastened, they made an arch from one side to the other. Outside this square pavilion, there were porticoes, joined above to the pavilion, and supported by twenty-four poles, not so large as the central ones, so that the whole pavilion was supported by thirty-six poles. From this pavilion at least five hundred red cords were extended, and inside there was a crimson carpet, beautifully ornamented with silken cloths of many colours, and embroidered with gold threads. In the centre of the ceiling there was the richest work of all ; and in the four corners were the figures of four eagles, with their wings closed. The outside of the pavilion was lined with silk cloths, in black, white, and yellow stripes. At each corner there was a high pole, with a copper ball, and the figure of a crescent on the top ; and in the centre, there was another tall pole, with a much larger copper ball and crescent ; and, on the top of the pavilion, between these poles, there was a tower of silken cloths, with turrets, and an entrance door; and when the wind blew the pavilion about, or made the poles unsteady, men went on the top, and secured anything that was loose. This pavilion was so large and high that, from a distance, it looked like a castle ; and it was a very wonderful thing to see, and possessed more beauty than it is possible to describe.